FR2456379A2 - Conductive liq. contact device - makes and breaks by liq. forced into capillary passage through electrode insulation - Google Patents

Conductive liq. contact device - makes and breaks by liq. forced into capillary passage through electrode insulation

Info

Publication number
FR2456379A2
FR2456379A2 FR7912372A FR7912372A FR2456379A2 FR 2456379 A2 FR2456379 A2 FR 2456379A2 FR 7912372 A FR7912372 A FR 7912372A FR 7912372 A FR7912372 A FR 7912372A FR 2456379 A2 FR2456379 A2 FR 2456379A2
Authority
FR
France
Prior art keywords
liq
forced
conductive
breaks
capillary passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7912372A
Other languages
French (fr)
Other versions
FR2456379B2 (en
Inventor
Francois Haussonne
Guy Moisan
Hubert Prigent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Etat Francais
Original Assignee
Etat Francais
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7709237A external-priority patent/FR2385208A1/en
Application filed by Etat Francais filed Critical Etat Francais
Priority to FR7912372A priority Critical patent/FR2456379A2/en
Priority to EP80400604A priority patent/EP0019516A1/en
Priority to US06/148,413 priority patent/US4348570A/en
Publication of FR2456379A2 publication Critical patent/FR2456379A2/en
Application granted granted Critical
Publication of FR2456379B2 publication Critical patent/FR2456379B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H01H1/08—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved wetted with mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/02—Details
    • H01H29/04—Contacts; Containers for liquid contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/28—Switches having at least one liquid contact with level of surface of contact liquid displaced by fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The contact is housed in a container with at least one wall (2) of dielectric material not wettable by the conductive liq. (1), backed by a metallic layer to which an electrical connection (8) is secured. The dielectric part of this composite wall is pierced by at least one capillary passage (6) so dimensioned that the liq. (1) cannot enter it unless forced by pressure on a flexible membrane (4). Upon release of pressure the liq. leaves the passage (6) and interrupts the contact.
FR7912372A 1977-03-22 1979-05-10 Conductive liq. contact device - makes and breaks by liq. forced into capillary passage through electrode insulation Granted FR2456379A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7912372A FR2456379A2 (en) 1977-03-22 1979-05-10 Conductive liq. contact device - makes and breaks by liq. forced into capillary passage through electrode insulation
EP80400604A EP0019516A1 (en) 1979-05-10 1980-05-05 Electric contact devices with conducting liquid
US06/148,413 US4348570A (en) 1979-05-10 1980-05-09 Electric contact device with liquid conductors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7709237A FR2385208A1 (en) 1977-03-22 1977-03-22 Two-chambered electric mercury switch - has mesh between two electrodes through which mercury passes under pressure
FR7912372A FR2456379A2 (en) 1977-03-22 1979-05-10 Conductive liq. contact device - makes and breaks by liq. forced into capillary passage through electrode insulation

Publications (2)

Publication Number Publication Date
FR2456379A2 true FR2456379A2 (en) 1980-12-05
FR2456379B2 FR2456379B2 (en) 1981-12-24

Family

ID=26219936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912372A Granted FR2456379A2 (en) 1977-03-22 1979-05-10 Conductive liq. contact device - makes and breaks by liq. forced into capillary passage through electrode insulation

Country Status (1)

Country Link
FR (1) FR2456379A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114811A (en) * 1961-11-16 1963-12-17 Bell Telephone Labor Inc Reduction of sticking of mercury-wetted contacts
DE1218062B (en) * 1962-02-12 1966-06-02 Siemens Ag Mercury relay
FR2312847A1 (en) * 1975-05-26 1976-12-24 Philips Nv SWITCHING DEVICE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114811A (en) * 1961-11-16 1963-12-17 Bell Telephone Labor Inc Reduction of sticking of mercury-wetted contacts
DE1218062B (en) * 1962-02-12 1966-06-02 Siemens Ag Mercury relay
FR2312847A1 (en) * 1975-05-26 1976-12-24 Philips Nv SWITCHING DEVICE

Also Published As

Publication number Publication date
FR2456379B2 (en) 1981-12-24

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